Former 5-time CEO with leading companies in climate technology and renewable energy. He has co-founded and led companies in the industry, including businesses established as university spin-outs from MIT and Dartmouth. His experience also includes investment banking and corporate, structured, and project financing across the energy, transportation, and telecommunications sectors where he translated over $3 billion in capital financings and his innovations led to an additional $3 billion of financings in the telecommunications industry. 

Seasoned energy executive with 20+ years of international leadership, advancing scalable WTE solutions and bankable clean power infrastructure.

Long-standing Rotarian (since 2000), committed to ethical leadership, transparency, and long-term value creation.

Mike Koester is an international business executive with over 25 years of leadership experience across the energy, infrastructure, environmental, industrial, transportation, and government sectors. His expertise includes strategic planning, business growth, operational scaling, M&A, emerging technology commercialization, and organizational development. As Strategy Adviser to R4 ENERGY, INC., he supports corporate growth, strategic partnerships, and market expansion.

An experienced international commercial executive specializing in business development, strategic partnerships, international sales, and market expansion across South America and Africa. He has commercialized innovative technologies, built alliances with governments, manufacturers, and industry leaders, and led international projects in circular economy and waste management. As South America Advisor to R4 ENERGY, INC., he supports regional growth and the deployment of sustainable waste-to-energy solutions.

Serving as R4 ENERGY, INC.’s Representative in Bangladesh, he supports business development, strategic partnerships, and market expansion across the region. With more than 12 years of experience in international trade, supply chain management, and business negotiations, he has established strong relationships with manufacturers, private enterprises, and international stakeholders. His expertise in commercial development, cross-cultural communication, and market execution helps advance strategic opportunities and accelerate clean energy deployment in Bangladesh.

An accomplished environmental and industrial safety executive with extensive experience across the Middle East and Africa, specializing in environmental compliance, radiation safety, industrial hygiene and EHS consultancy. He has successfully developed and commercialized specialized environmental monitoring and radiation management services, establishing strategic relationships with national oil companies, regulators, and major industry stakeholders. He leads the delivery of EHS and oil & gas radiation services across Kuwait and the wider Gulf region with expertise spanning air quality, stack emissions and NORM/TENORM management.

An international business development professional specializing in strategic partnerships, market development, and sustainable infrastructure across Southeast Asia. He collaborates with industry stakeholders, waste-management operators, investors, and institutional networks to develop responsible waste-to-energy opportunities. As Strategic & Market Development Advisor to R4 ENERGY, INC. for Malaysia, Singapore, Brunei, and Indonesia, he supports regional projects, local partnerships, and modular waste-to-energy solutions, emphasizing regulatory compliance, independent verification, and long-term environmental and social value.